Disadvantage: The surface is not stainless steel, but the gold steel sand, gold steel sand fine hole easy to breed fine, the time long surface will become black or fall off form bald spot, pickling and electrolysis waste water pollution environment, not environmental protection.

Description: This surface treatment process in addition to the individual brands do use 304 materials, 201 materials mostly for the low-end trough application. Antirust function relies mainly on chemical coatings rather than on high-quality stainless steel materials.

Description: Stainless steel is an internationally recognized safety material that can be implanted into the human body. The international medium and high end sinks almost all adopt the physical surface treatment craft. "Soft silk" surface treatment is "brushed" surface treatment of the "upgraded version", the surface soft and delicate.